Perfect for 1/10 and 1/8 scale vehicles, boats, planes, drones. When you want a powerful battery pack that you can depend on even when you push it to its limits, this 4S 9000mah 120C LiPo battery is for you. Powerhobby Power Pro Series lipo batteries offers very high power and very long run time for your RC models. The 120C burst rate enhances your driving experience no matter what type of driving you are into. These battery packs are made with superior Lithium Polymer raw materials. The advanced stacking technology enables a single cell of capacity to reach 9000mah. Powerhobby Power Pro Batteries are your ideal choice for your RC Applications.